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(No ModeL) 0. W. SPEOKIN. RAILWAY PROG- No. 528.348. Patented Oct. 30,1894.

UNITED STATES PATENT OFFICE;

CHARLES W. sPEoKIN, or ARGENTINE, KANSAS.

RAILWAY-FROG.

SPECIFICATION forming part of Letters Patent N 0. 528,348, dated October30, 1894.

Application filed February 26, 1894I Serial No. 501,497. (No model.)

- ing drawing, forming a part thereof.

My invention relates to railway frogs, and has for its object to obviatethe jolting of cars in the passage of a train over the frog, and therebylengthen the life of the bolts securing the frog in place, and alsolessening the expense of keeping said frogs in repair.

With this object in view, my invention consists in its novelconstruction, as hereinafter described and claimed.

As well known, the jolting of a train in passing over a frog of theordinary construction gradually loosens the bolts, and finally breaks ordislodges them, and to obviate the danger arising from this breakage ordislodgment of the bolts, a constant watch must be kept upon the frogs.My invention is to obviate most of this jolting caused by the passage ofthe train over the frog by recessing the tread of the switch-rail, andthis construction, relieving the bolts of the strain to which they werebefore subjected, demands less 'attention from the person engaged in theinspection and repair of the frog.

Referring to the drawing, which illustrates in perspective a frogconstructed in accordance with my invention, 1, designates the main-railof the track, and 2, designates the intersecting wing-rail.

3, designates the guard of the main rail, which is arranged a suitabledistance inward of and parallel with said main-rail, and this guard-rail3, forms a junction at the intersection of the tracks, with one sectionof the wing-rail, and the opposite section of the wing-rail forms ajunction with the main-rail.

4, designates the guard of the wing-rail 2, and this guard is arrangedat the inner side of and parallel with the said wing-rail, and forms ajunction with one section of the mainrail, at the intersection of thetracks.

That portion of the wing-rail 2, which forms .of thefree andunobstructed passage of the a junction with the outer side of the main-5o rail, has its upper side or tread recessed or notched, so as to formtheinclined surface 5; said inclined surface beginning at the j unctionof the wing-rail with the outer side of the main-rail, and in the samehorizontal plane as the upper surface of said rail, and extendingdownwardly and outwardly. The guard-rail 4, of the wing-rail is alsorecessed or notched correspondingly in its upper surface or tread, so asto form the inclined surface 6, at the junction of the guard-rail, withthe other section of the main-rail.

From this construction, it will be apparent that a car wheel running inthe direction of the arrow upon the main-rail, as shown in dotted lines,will pass the intersection of the tracks, Without the usual jolting,which is occasioned by the passage of the wheel over the ordinary formof frog, because the wing-rail and guard-rail 4, being notched as shown,the projecting portion of the rim of the wheel will not come in contacttherewith, except at the extreme upper end of the inclined surfaces 5and6. Owing to the narrow surface of the tread of the rim of the wheelpresented to the upper end of these inclined surfaces, itwill beunderstood that these portions of the wing and guard-rails weardownequally as fast as themain-rail, so that no obstruction is offered tothe passage-0f the wheel at these points.

3, at its meeting point with the wing-rail 2,

.is recessed or notched in its upper surfaceor tread, to form theinclined surface 7, to allow 8 5 projecting portion of the. rim of thewheel running upon the wing-rail.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination in a railway frog, of a main-rail, a wing-railintersecting said mainrail, and notched or recessed at its upper sideand at the junction point of the said wing-rail with the outer side ofthe main-rail, and guard-rails, forming a junction with said main-railand said wing-rail, and notches formed in the upper side of the saidguardrails at the junction with said mainand formed at their junctionpoints with inclined Wingrails, substantially as set forth. surfaces,substantially as set forth. IO

2. In a railway frog, the combination with In testimony whereofIaffix mysignaturein the main-rail, of a Wing-rail recessed to form presence oftwo witnesses.

5 an inclined surface at its upper side and at CHARLES W. SPECKIN.

the junction point of the said wing-rail with Witnesses: the main-rail,and guard-rails forming a junc- M. R. REMLEY,

tion with the wingand main-rails, and also G. Y. THORPE.

